correct a small bug detected when using different wire discretisation of edges of the shape to be meshed by hexaedrons.
correct a small bug detected when using different wire discretisation
of edges of the shape to be meshed by hexaedrons.

FedoraScientific/salome-smesh,FedoraScientific/salome-smesh,FedoraScientific/salome-smesh,FedoraScientific/salome-smesh